Stock Mazda Fuel & Ignition Maps
#33
T O R Q U E!
iTrader: (24)
I think the guys talking geek speak here are electrical hardware and/or software engineers by training or they have too much spare time on their hands... there is a lot of jargon in any discipline, and they are just speaking to that. Pretty neat stuff regardless. I love threads like this
#40
you're right - the entire trailing map (in vacuum) is of the same value... it fades from -4* degree to -14.8*
in fact, 5K Revs column is 0* trailing until atmospheric pressure which is then -4.9*, -9.5* then 14.8*
it continues like that all over the map.
#41
rotorhead
iTrader: (3)
Only way to prove numbers in the real world would be to use a Mazda tester/monitor tool. Also, the service highlights manual indicates that timing can vary up to 7 degrees based on knock sensor feedback alone.
for reference, here are the early model PFC timing maps (current PFC default maps are different). Supposedly these are close to stock.
here is the final injector pulsewidth map (hidden basemap * Commander INJ map correction) for that same model PFC. this does not include air temp etc corrections
10000 PIM units = atmospheric pressure
20000 PIM units = 1.0 kg/cm^2 boost or 14.22 psi
-- leading timing is in degrees BTDC
-- trailing timing is the number of degrees of separation between firing of the trailing and leading plugs
-- fuel map is in milliseconds of injector pulsewidth
for reference, here are the early model PFC timing maps (current PFC default maps are different). Supposedly these are close to stock.
here is the final injector pulsewidth map (hidden basemap * Commander INJ map correction) for that same model PFC. this does not include air temp etc corrections
10000 PIM units = atmospheric pressure
20000 PIM units = 1.0 kg/cm^2 boost or 14.22 psi
-- leading timing is in degrees BTDC
-- trailing timing is the number of degrees of separation between firing of the trailing and leading plugs
-- fuel map is in milliseconds of injector pulsewidth
Last edited by arghx; 12-05-09 at 06:44 PM. Reason: fuel map
#46
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the cosmo new model training book has the timing map in it, clearly split is small at low load, and big at high load.
the rx8 can be plugged into the dealership computer, it also runs more split @wot than it does at say half throttle.
i do not specifically know about the FD of course...
the rx8 can be plugged into the dealership computer, it also runs more split @wot than it does at say half throttle.
i do not specifically know about the FD of course...
#47
Of course there is more information... OMP, correction tables, etc..
There are a few people here who I've shared that information with but for something more specific you could always log the FD and build your own map for these or run the ECU on a workbench.
I didn't have any help extracting this information and dont feel the need to release it. Sorry.
There are a few people here who I've shared that information with but for something more specific you could always log the FD and build your own map for these or run the ECU on a workbench.
I didn't have any help extracting this information and dont feel the need to release it. Sorry.
#49
Rotary Enthusiast
iTrader: (8)
Of course there is more information... OMP, correction tables, etc..
There are a few people here who I've shared that information with but for something more specific you could always log the FD and build your own map for these or run the ECU on a workbench.
I didn't have any help extracting this information and dont feel the need to release it. Sorry.
There are a few people here who I've shared that information with but for something more specific you could always log the FD and build your own map for these or run the ECU on a workbench.
I didn't have any help extracting this information and dont feel the need to release it. Sorry.